Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
cua thong » cua thuong, cua khong, cua tong
ca thuong » cao thuong, cua thuong, va thuong
theo chu » theo chieu, cho chu, chao chu
chu nang » chuc nang, chua nang, cuu nang
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than ban » thanh ban, toan ban, than man

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu nang - hanh trang ((cua thong) OR (ca thuong)) cong tac than ban~.
• Adding a wildcard symbol may retrieve word variants: theo chu nang - hanh trang ((cua thong) or (ca thuong)) cong tac than ban*.